Есть код, и в нем требуется найти ошибку - Assembler

.386
.model flat,stdcall
option   casemap:none
include C:\masm32\INCLUDE\WINDOWS.INC
include C:\masm32\INCLUDE\KERNEL32.INC 
include C:\masm32\INCLUDE\USER32.INC
include C:\masm32\INCLUDE\ADVAPI32.INC                          
includelib C:\masm32\lib\comctl32.lib
includelib C:\masm32\lib\user32.lib
includelib C:\masm32\lib\gdi32.lib
includelib C:\masm32\lib\kernel32.lib            
includelib C:\masm32\lib\user32.lib
includelib C:\masm32\lib\advapi32.lib             
 
.DATA
 HINST       DWORD       0
 VAR_LEVEL   DD      4000
 BEEP_LONG     DWORD      1000
 STR_HELLO           DB "PRIVET STOP_ONE",0
 STR_BYTE_HELLO          BYTE   "BYTE HELLO",0
 
.CODE
 START: 
  invoke       MessageBox ,\0 ,\addr  STR_BYTE_HELLO    ,\offset  STR_HELLO ,\0
  invoke       Sleep   ,   2000 
  invoke       Beep   ,   VAR_LEVEL  ,   BEEP_LONG      
        
 EXIT:    
  invoke       ExitProcess,0
END  START